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AIWA TN-CL237
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of AIWA TN-CL237 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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Text excerpt from page 15 (click to view)
IC, TMP87PH47U
Pin No. 1 2 3 4 5 Pin Name KY OUT 4 KY OUT 3 KY OUT 2 KY OUT 1 FREQUENCY 1 VOL 1 VOL 1 6 7 8 9 10 11 12 13 14 15 16 17 18 19 VOL 0 KY IN 6 KY IN 5 KY IN 4 KY IN 3 KY IN 2 KY IN 1 TEST RESET XIN XOUT VSS VREF LCD RS COMBO CLK LCD RW 20 COMBO DATA EP DATA 21 22 23 24 25 26 27 28 BAT DET EP CLK LCD DB 4 LCD DB 5 LCD DB 6 LCD DB 7 COMBO STB TX DATA I O I/O I/O I/O I/O O O I/O O I I I I I I I I I O � I O VOL 0 I/O O O O O I/O Keypad column output 4 Keypad column output 3 Keypad column output 2 Keypad column output 1 1 = 25CH, 0 = 10CH 4 (Max.) 1 1 3 1 0 2 0 1 1 (Min.) 0 0 Description

Keypad column input 6 Keypad column input 5 Keypad column input 4 Keypad column input 3 Keypad column input 2 Keypad column input 1 Tied to low Normaly High, low to reset MCU Resonator in (4.0 MHz) Resonator out (4.0 MHz) Ground A/D Reference voltage input (3.0V) LCD Control (Resister select Combo chip CLOCK LCD Control (0 = Write, 1 = Read) Combo chip DATA EEPROM DATA Battery voltage input EEPROM CLOCK LCD DATA 4 LCD DATA 5 LCD DATA 6 LCD DATA 7 Combo chip STB Transmitted DATA Received Signal Strength Indicator 0 = Instruction resister, 1 = Data resister)

29

SIG OUT

I

0 = Carrier present, 1 = Carrier absent 0 = RX unlock, 1 = RX lock 0 = TX unlock, 1 = TX lock

30 31 32 33 34

CHG DET RX DATA TX PWR BPTONE RX PWR

I I O O O

Charger detect 1 = Charging, 0 = Not charging Received DATA TX Power control 0 = ON, 1 = OFF Buzzer signal RX Power control 0 = ON, 1 = OFF

21

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